Circumciser



Patented May. 29,

UNITED STATES PATENT OFFICE cmcUMclsmt Augustus J. Baker, Cleveland, Ohio Application December 9, 1942, serial No. 468,3591/ (c1. 12s- 305) I 4 I Claims.

This application is a continuation-impart of my application Serial Number 399,099, filed Jun 21, 1941.

Tins invention relates generally to a surgical instrument commonly known as a circumciser, used in the surgical operation known as circumcision, which consists in removing a portion l of the prepuce, leaving the glans penis exposed.

It is an object of this invention to' generally improve uponthe construction of the circumciser,

' 20 is an integral ange in the spring housing and and to 'produce a compact, convenient instrument of the kind which will facilitate making the operation more expeditiously.

It is a further object of this invention toprovide 4a circumciser with meansto carry a knife circumferentially around the cone or bell that shields the glans penis to sever the prepuce orforeskin at a predetermined plane.

Other objects andadvantages reside in certain novel features of construction, arrangement and combination of parts, which will .hereinafter be more fully-described and pointed out in the appended claims.

Referring to the drawing:

Fig. 1 is a side elevational view of the assembled instrument with'portions broken away and in section to illustrate details of structure andl to show the relation of the parts of the instrument.

Fig. 2 is .a fragmentary end view of Fig. Land showing a means for connecting thebase with the.

arm and also the set screw' that holds the members in assembled locked position,

Figs. 3,' 4 and 5 show details of the knife carrying member. t

Figs'. 6. and 7 show details of the keeper that is slidably mounted on the knife carrying member.

Figs. 8 and 9 show an alternative form of means for securing the base and arm in assembled relationship.

Figs. 10, 11 and 12 show details of the knife that i's adjustably mounted on' the knife carrying member.

Figs. .13, 1'4 and 15 show details of the clamp` s ing screw, the spring housing and the remova-g bly mounted connecting pin between the clamping screw and the cone or bell shielding member.

Similar reference numerals indicate the same parts throughout the several views ofy theldrawing.

Referring more in detail to the accompanying drawing, I0 is the base member, II is a T shapedmember fast thereon. I2 is an aperture or hole in the'base having a flange I2' to prevent the cone or bell member from passing therethrough.l I3 is the arm of the instrument having a recess' I4 therein corresponding to the Tshaped member fast on the base and adapted to receivevthe same. l 5 is a set screw adapted to hold the base member and arm in locked relationship. I 6 is a bore in the arm provided for the' reception of the headed screw I1 that passes therethrough and which is provided with a central bore I8 for the reception of the clamping screw 26.' I9 is a spring housing tapped to receive the thread in the screw I l, and is heldin assembled relationship thereby.

is provided with a bore to receive snugly the enlarged end of the clamping screw. 2| is a washer v mounted on the clamping screw and bears against the shoulder 22 of the clamping screw, and slidably fits in the bore 23 of the spring housing. v2l is a helical spring that bears on the upper surface of the washer at its lower end,v and at its upper end against the end 25 of thescrevv Il. 2B is the clamping screw having a portion thereof threaded as at 21, and is longitudinally recessed as at 28 for the reception of the end of the screw 29. "26' is the clamping nut. The screw 29 may be tapped directly through the 'arm I3 and the headed 25 screw I'I or into either alone. The screw 29 has necting pin. 'I'he connecting pin maybe provided with avthreaded end as at 34 for the reception ofthe penis cone or bell 35. The various cones or bells range in size, the inside diameters being substantially as follows: Number 1--10 mm., number 2-12 mm., number 3--15 mrm, number 4-20 min., and number 5-25 mm. The connecting pin. may -be provided with a through bore 35 for-the reception of pin 31 which may be used vto hold the connecting pin while detaching the -swivelled member from the. clamping screw 26 or detaching the cone or bell from the threaded endof the connecting pin. 9d is theknife carrying arm, and is provided with'a U y shaped bearing 39 adapted to engage the connect ing pin. .The pin 33 is positioiicd within the U- shaped bearing 99 and is retained in position by the `keeper 40 clamped over the open end of the notch. On the knife carrying arm there is paraa ivided a slidably mounted keeper 40. The keeper 1 is `provided with a longitudinally extending flange l 4I, see Fig. 6, and a longitudinally extending slot 42 and a knob 43. The flange slides in the notch 44 in the knife carrying arm, and the ange and the notch cooperate to keep the keeper in Aalinei ment on the arm, while the screw 45 is threaded into the knife carrying arm remote from the U- lshaped bearing and cooperates with the longitudinally extending slot to hold the keeper in i place on the arm and limi-t the travel of the keeper when moved back and forth on the arm 1in mounting and removing the same.

t 46 is a shoulder on the knife carrying arm and is adapted to maintain the knife 41 in alinement thereon. The knife is of right angle configura- Qtion and is provided with an extending portion 48 that is sharpened to form the cutting portion of vthe knife. The knife is provided with a lonl gitudinally extending slot 49vfor the reception of l the thumb screw 5B mounted in' the arm adjacent i its lower end,fadapted to clamp the knife in adjusted position onthe knife carrying arm.

prepuce on an exact line withl the top of the base.

of the clamp. The clamp is then removed, and should sutures be required, the surgeon inserts them where needed.

Altho I have shown and described a specific structure of apparatus and a particular form and relation of the parts thereof I do not desire to restrict myself to the details of form, construction or arrangement as various changes and modifications can be made within the scope of the appended claims. I i

I claim:

l. A circumcision instrument comprising a base portion, an arm portion, each of the aforesaid portions having an aperturetherein, a shielding instrumentality extending into and partly through the aperture in the. base and provided with a clamping screw portion that is non-rotat- In the variant represented in Figs. 8 and 9, the

ibase member 5I is provided with two apertures extending therethrough as at 52 and 53, and two l threaded bores 54 and 55 extending therethrough. l Projecting from the arm 56 are two integral lugs 51 and 58, each having a bore therethrough for the reception of a lock screw as at 59 and 60.

to align the bores in the lugs with the threaded bores in the base for the reception of the lock screws that secure the arm and base in assembled position. Otherwise the assemblies may be the 'same as previously described.`

` Inlig.A 1 the glans and prepuce is shown diagrammatically" in place in the instrument in dotted lines as at vlill.

l A The operative technic of circumcision with the use of the instrument herein described is as followsz The patient is placed on the operating table, the organ is given the usual preoperative treatment lwith an ,antiseptic and is then anesthetized. The lproper, shield is then selected. If the foreskin is zirretractable, a dorsal slit is made in the foreskin or prepuce just long enough to allow the prepuce to be stretched over the shield. The shield member is then mounted in the instrument and the iinstrument is placed over the organ, the prepuce is then pulled up between the base and the shield member then up on the shield member, and when I properly positioned, the prepuce is clampedv and lcrushed between the base of the instrument and able but axially movable inthe-aperture in the l arm portion, a removably mounted knife, a knife carrying arm attachment removably secured ori the clamping screw portion adapted to carry the removably mounted knife circumferentially of the shielding instrumentality, and means on the knife carrying arm attachment for adjusting at will the operable distance of the removably mounted knife with respect to the shielding instrumentality.

2; A circumcision instrument comprising a support consisting of a base portion .and an arm portion, each ofthe aforesaid portions having an aperture therein, a shielding instrumentality extending into and partly through the aperture in the base portion and provided with a removably mounted pin portion, a clamping screw portion non-rotatable but axially movable in the arm portion and cooperating with-the pin portion by means of aswivelled threaded member on the pin portion, a clamping nut cooperating with the non-rotatable but axially movable clamping screw portion, a yielding means normally moving the shielding instrumentality with its cooperating g members downward inthe base, a removably ithe shield member thus causing haemostasis over l all the blood vessels. The clamp is allowed to re- Y l `main from three to ten minutes to prevent hems "an axis, the knife abscises the mounted knife, a knife carrying arm attachment removably secured on the pin portion for carrying the knife circumferentially of the shielding instrumentality, and means to adjust the knife on the knife carrying arm attachment relative to the shielding instrumentality.

3. The structure of claim 1 comprising interlocking means to holdthe arm portion on the base portion, said interlocking means consistingv of a slot-engaging element on the base portion and a complemental receiving slot in the arm portion, and a set screw to llock the interlocking means in predetermined position.

4. The structure'of claim 1 comprising interlocking and positioning means to hold and align the arm portion on the base portion, said interlocking and positioning means consisting of a plurality of set screws and positioning pins, the positioning pins being fast in the arm portion and engaging complemental receiving bores in the base to definitely position the base portion relative to the arm portion before inserting the set screws in the arm portion andscrewingfhem into the base portion.

AUGUSTUS J. BAKER. 

